Which function equation is represented by the graph? a. f(x)=12(4/3)^x b. f(x)=12(3/2)^x c. f(x)=12(2/3)^x d. f(x)=12(1/2)^x

How do i simply this expression (quadratic formula basis) on a ti-84 or normal calculator?

Circle d circumscribes abc and abe. which statements about the triangles are true? statement i: the perpendicular bisectors of abc intersect at the same point as those of abe. statement ii: the distance from c to d is the same as the distance from d to e. statement iii: bisects cde. statement iv: the angle bisectors of abc intersect at the same point as those of abe. a. i only b. i and ii c. ii and iv d. i and iii e. iii and iv

y=2x−1 5x−4y=1 is (1,1)(1,1) a solution of the system?